Finding the Fourth Proportional to 156,931.70, 235,051.95 and 136,195.70
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Solution
The fourth proportional to 156,931.70, 235,051.95 and 136,195.70 is: 203,993.62
Step by Step Solution
- Step 1: Write the proportion equation
156,931.70 : 235,051.95 = 136,195.70 : x - Step 2: Convert to fraction form
156,931.70/235,051.95 = 136,195.70/x - Step 3: Cross multiply
156,931.70x = 235,051.95 × 136,195.70 - Step 4: Simplify right side
156,931.70x = 32,013,064,866.62 - Step 5: Solve for x
x = 32,013,064,866.62/156,931.70 - Step 6: Final answer
x = 203,993.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.